object RelationalLogicOpDemo {
  def main(args:Array[String]): Unit = {
    val avgScore: Double = 78.0
    val totalScore: Int = 490
    val isPass: Boolean = avgScore >=60
    val isMeetStandard: Boolean = totalScore >=480
    val isQualified: Boolean = isPass && isMeetStandard
    println(s"平均分>=60(及格) : $isPass")
    println(s"总分>=480(达标) : $isMeetStandard")
    println(s"及格且达标(合格) : $isQualified")
  }
}
